Al-Ti-B晶粒细化合金中的有效形核相

来源期刊：中国有色金属学报1997年第3期

论文作者：孝云祯 马宏声 路贵民 刘劲波

文章页码：137 - 139

关键词：晶粒细化 TiAl₃相 有效形核相 Al-Ti-B中间合金 收稿日期： 1996-07-08 ； 修回日期： 1996-09-26 孝云祯， 男， 50岁， 副教授， 硕士

Key words：grain refining TiAl₃ phase effective nucleation phase Al-Ti-B master alloy

摘    要：研究了Al-Ti-B晶粒细化合金中各化合物相TiAl₃、TiB₂和AlB₂对铝晶粒的细化作用。结果表明，TiAl₃相是有效形核相，TiB₂和AlB₂相不能单独作为形核相，B对Al-Ti-B的细化作用有显著影响，但B及硼化物不能单独影响细化过程，而是富集在TiAl₃相中对细化过程产生重要影响。

Abstract: The effects of TiAl₃, TiB₂ and AlB₂ phases in the Al-Ti-B master alloy on grain refining of aluminium were studied. The results showed that the TiAl₃ phase is an effective nucleation agent, while the TiB₂ and AlB₂ phases can not be nucleation particles alone. The boron which has marked influence on the grain refin ing of Al-Ti-B master alloys does not have effect on refining process alone, but it would produce important effect on the refining process when it concentrates in the TiAl₃ phases.